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RU2008135668A - MUTUAL MODULATION SUPPRESSION DEVICE AND SPARKING INTENTIONAL INTERFERENCE IN THE TRANSMITTING DEVICE OF THE MAIN FREQUENCY BAND - Google Patents

MUTUAL MODULATION SUPPRESSION DEVICE AND SPARKING INTENTIONAL INTERFERENCE IN THE TRANSMITTING DEVICE OF THE MAIN FREQUENCY BAND Download PDF

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RU2008135668A
RU2008135668A RU2008135668/09A RU2008135668A RU2008135668A RU 2008135668 A RU2008135668 A RU 2008135668A RU 2008135668/09 A RU2008135668/09 A RU 2008135668/09A RU 2008135668 A RU2008135668 A RU 2008135668A RU 2008135668 A RU2008135668 A RU 2008135668A
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signal
interference
linear
composite
intentional
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RU2008135668/09A
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RU2417529C2 (en
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Гурканвал С. САХОТА (US)
Гурканвал С. САХОТА
Кристос КОМНИНАКИС (US)
Кристос КОМНИНАКИС
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Квэлкомм Инкорпорейтед (US)
Квэлкомм Инкорпорейтед
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Transceivers (AREA)

Abstract

1. Устройство подавления помех взаимной модуляции на основной полосе частот в приемном устройстве, содержащее: ! схему восстановления, выполненную с возможностью принимать первый сигнал, аппроксимировать линейные и нелинейные характеристики канала утечки от передающего устройства к приемному устройству и предоставлять восстановленный выходной сигнал; и ! сумматор сигналов, выполненный с возможностью принимать восстановленный выходной сигнал и вычитать его из второго сигнала из приемного устройства. ! 2. Устройство по п.1, в котором второй сигнал включает в себя модулированный по амплитуде утекший сигнал и принимаемый сигнал, и вычитание восстановленного выходного сигнала из второго сигнала практически устраняет помехи, ассоциативно связанные с утекшим сигналом, из второго сигнала. ! 3. Устройство по п.2, в котором утекший сигнал представляет собой затухающую версию первого сигнала. ! 4. Устройство по п.1, в котором второй сигнал включает в себя принимаемый сигнал и сигнал преднамеренных помех, и вычитание восстановленного выходного сигнала из второго сигнала практически устраняет помехи, ассоциативно связанные с сигналом преднамеренных помех, из второго сигнала. ! 5. Устройство по п.1, в котором второй сигнал включает в себя модулированный утекший сигнал, сигнал преднамеренных помех и принимаемый сигнал. ! 6. Устройство по п.5, в котором вычитание восстановленного выходного сигнала из второго сигнала практически устраняет помехи, ассоциативно связанные с утекшим сигналом и сигналом преднамеренных помех, из второго сигнала. ! 7. Устройство по п.1, в котором вычитание восстановленного выходного сигнала из второго1. A baseband intermodulation interference suppressor in a receiving device, comprising:! a reconstruction circuit configured to receive the first signal, approximate the linear and non-linear characteristics of the leakage channel from the transmitter to the receiver, and provide a reconstructed output signal; and ! a signal adder configured to receive the recovered output signal and subtract it from the second signal from the receiver. ! 2. The apparatus of claim 1, wherein the second signal includes an amplitude modulated leakage signal and a received signal, and subtracting the reconstructed output signal from the second signal substantially removes leakage-associated interference from the second signal. ! 3. The apparatus of claim 2, wherein the leaked signal is an attenuated version of the first signal. ! 4. The apparatus of claim 1, wherein the second signal includes a received signal and an intentional jamming signal, and subtracting the reconstructed output signal from the second signal substantially removes the interference associated with the intentional jamming signal from the second signal. ! 5. The apparatus of claim 1, wherein the second signal includes a modulated leakage signal, an intentional interference signal, and a received signal. ! 6. The apparatus of claim 5, wherein subtracting the reconstructed output signal from the second signal substantially eliminates interference associated with the leaked signal and the intentional interference signal from the second signal. ! 7. The device according to claim 1, in which the subtraction of the reconstructed output signal from the second

Claims (36)

1. Устройство подавления помех взаимной модуляции на основной полосе частот в приемном устройстве, содержащее:1. A device for suppressing interference of mutual modulation on the main frequency band in the receiving device, comprising: схему восстановления, выполненную с возможностью принимать первый сигнал, аппроксимировать линейные и нелинейные характеристики канала утечки от передающего устройства к приемному устройству и предоставлять восстановленный выходной сигнал; иa recovery circuit configured to receive the first signal, approximate the linear and nonlinear characteristics of the leakage channel from the transmitter to the receiver, and provide a restored output signal; and сумматор сигналов, выполненный с возможностью принимать восстановленный выходной сигнал и вычитать его из второго сигнала из приемного устройства.a signal adder configured to receive the reconstructed output signal and subtract it from the second signal from the receiver. 2. Устройство по п.1, в котором второй сигнал включает в себя модулированный по амплитуде утекший сигнал и принимаемый сигнал, и вычитание восстановленного выходного сигнала из второго сигнала практически устраняет помехи, ассоциативно связанные с утекшим сигналом, из второго сигнала.2. The device according to claim 1, in which the second signal includes a modulated amplitude leaked signal and a received signal, and subtracting the reconstructed output signal from the second signal practically eliminates the interference associated with the leaked signal from the second signal. 3. Устройство по п.2, в котором утекший сигнал представляет собой затухающую версию первого сигнала.3. The device according to claim 2, in which the leaked signal is a fading version of the first signal. 4. Устройство по п.1, в котором второй сигнал включает в себя принимаемый сигнал и сигнал преднамеренных помех, и вычитание восстановленного выходного сигнала из второго сигнала практически устраняет помехи, ассоциативно связанные с сигналом преднамеренных помех, из второго сигнала.4. The device according to claim 1, in which the second signal includes a received signal and an intentional interference signal, and subtracting the reconstructed output signal from the second signal practically eliminates the interference associated with the intentional interference signal from the second signal. 5. Устройство по п.1, в котором второй сигнал включает в себя модулированный утекший сигнал, сигнал преднамеренных помех и принимаемый сигнал.5. The device according to claim 1, wherein the second signal includes a modulated leaked signal, an intentional interference signal, and a received signal. 6. Устройство по п.5, в котором вычитание восстановленного выходного сигнала из второго сигнала практически устраняет помехи, ассоциативно связанные с утекшим сигналом и сигналом преднамеренных помех, из второго сигнала.6. The device according to claim 5, in which the subtraction of the restored output signal from the second signal practically eliminates the interference associated with the leaked signal and the signal of intentional interference from the second signal. 7. Устройство по п.1, в котором вычитание восстановленного выходного сигнала из второго сигнала практически устраняет помехи взаимной модуляции второго порядка из второго сигнала.7. The device according to claim 1, in which the subtraction of the restored output signal from the second signal practically eliminates the interference of the mutual modulation of the second order from the second signal. 8. Устройство по п.1, в котором вычитание восстановленного выходного сигнала из второго сигнала практически устраняет помехи взаимной модуляции третьего порядка из второго сигнала.8. The device according to claim 1, in which the subtraction of the restored output signal from the second signal practically eliminates the interference of third-order intermodulation from the second signal. 9. Устройство по п.1, в котором первый сигнал имеет частоту, отличную от частоты второго сигнала.9. The device according to claim 1, in which the first signal has a frequency different from the frequency of the second signal. 10. Устройство по п.1, в котором схема восстановления включает в себя адаптивный фильтр, который адаптируется на основе выходного сигнала из сумматора сигналов.10. The device according to claim 1, in which the recovery circuit includes an adaptive filter that adapts based on the output signal from the signal adder. 11. Устройство по п.1, в котором схема восстановления включает в себя11. The device according to claim 1, in which the recovery circuit includes таблицу поиска, которая аппроксимирует нелинейные характеристики усилителя мощности передающего устройства, иa lookup table that approximates the non-linear characteristics of the power amplifier of the transmitting device, and адаптивный фильтр, который аппроксимирует линейные характеристики дуплексора и приемного устройства.adaptive filter that approximates the linear characteristics of the duplexer and receiver. 12. Устройство по п.11, в котором схема восстановления дополнительно включает в себя фильтр нижних частот, который аппроксимирует характеристики одного или более фильтров нижних частот в приемном устройстве.12. The device according to claim 11, in which the recovery circuit further includes a low-pass filter that approximates the characteristics of one or more low-pass filters in the receiving device. 13. Устройство по п.1, дополнительно содержащее:13. The device according to claim 1, additionally containing: детектор преднамеренных помех, подключенный к приемному устройству, чтобы обнаруживать сигнал преднамеренных помех и предоставлять его в схему восстановления,an intentional interference detector connected to a receiver to detect an intentional interference signal and provide it to a recovery circuit, при этом схема восстановления выполнена с возможностью добавлять сигнал преднамеренных помех в восстановленный выходной сигнал.wherein the recovery circuit is configured to add a deliberate interference signal to the reconstructed output signal. 14. Устройство по п.1, в котором если первый сигнал ниже порогового уровня мощности, схема восстановления выполнена с возможностью не предоставлять восстановленный выходной сигнал.14. The device according to claim 1, in which if the first signal is below the threshold power level, the recovery circuit is configured to not provide a restored output signal. 15. Устройство подавления помех взаимной модуляции в приемном устройстве, содержащее:15. A mutual modulation interference suppression device in a receiving device, comprising: средство приема композитного сигнала, содержащего помехи взаимной модуляции и принимаемый сигнал в основной полосе частот;means for receiving a composite signal containing interference modulation and the received signal in the main frequency band; средство выполнения линейного и нелинейного преобразования первого сигнала, чтобы получить сигнал подавления помех; иmeans for performing linear and nonlinear conversion of the first signal to obtain an interference suppression signal; and средство вычитания сигнала подавления помех из композитного сигнала, чтобы получить принимаемый сигнал.means for subtracting the interference suppression signal from the composite signal to obtain a received signal. 16. Способ подавления помех взаимной модуляции в приемном устройстве, содержащий этапы, на которых:16. A method for suppressing interference of mutual modulation in a receiving device, comprising stages in which: принимают композитный сигнал, содержащий помехи взаимной модуляции и принимаемый сигнал в основной полосе частот;receive a composite signal containing interference modulation and the received signal in the main frequency band; выполняют линейное и нелинейное преобразование первого сигнала, чтобы получить сигнал подавления помех; иperforming linear and nonlinear conversion of the first signal to obtain an interference suppression signal; and вычитают сигнал подавления помех из композитного сигнала, чтобы получить принимаемый сигнал.subtracting the interference suppression signal from the composite signal to obtain the received signal. 17. Способ по п.16, дополнительно содержащий этап, на котором:17. The method according to clause 16, further comprising the stage of: обрабатывают композитный сигнал посредством схемы линейного и нелинейного преобразования с понижением частоты до вычитания сигнала подавления помех.process the composite signal by means of a linear and non-linear conversion circuit with decreasing frequency to subtract the interference suppression signal. 18. Способ по п.16, в котором первый сигнал является немодулированной версией утекшего сигнала, обнаруженного в композитном сигнале.18. The method according to clause 16, in which the first signal is an unmodulated version of the leaked signal detected in the composite signal. 19. Способ по п.16, в котором композитный сигнал включает в себя модулированный по амплитуде утекший сигнал, сигнал преднамеренных помех и принимаемый сигнал, и вычитание сигнала подавления помех из композитного сигнала практически устраняет помехи, ассоциативно связанные с утекшим сигналом или сигналом преднамеренных помех, из композитного сигнала.19. The method according to clause 16, in which the composite signal includes a modulated amplitude leaked signal, an intentional interference signal and a received signal, and subtracting the interference suppression signal from the composite signal practically eliminates the interference associated with the leaked signal or intentional interference signal, from a composite signal. 20. Способ по п.16, в котором композитный сигнал включает в себя принимаемый сигнал и сигнал преднамеренных помех, и вычитание сигнала подавления помех из композитного сигнала практически устраняет помехи, ассоциативно связанные с сигналом преднамеренных помех, из композитного сигнала.20. The method of claim 16, wherein the composite signal includes a received signal and an intentional interference signal, and subtracting the interference suppression signal from the composite signal virtually eliminates the interference associated with the intentional interference signal from the composite signal. 21. Способ по п.16, в котором вычитание сигнала подавления помех из композитного сигнала практически устраняет помехи взаимной модуляции второго порядка из композитного сигнала.21. The method of claim 16, wherein subtracting the interference suppression signal from the composite signal substantially eliminates second order intermodulation interference from the composite signal. 22. Способ по п.16, в котором вычитание сигнала подавления помех из композитного сигнала практически устраняет помехи взаимной модуляции третьего порядка из композитного сигнала.22. The method of claim 16, wherein subtracting the interference suppression signal from the composite signal substantially eliminates third order intermodulation interference from the composite signal. 23. Способ по п.16, в котором первый сигнал имеет частоту, отличную от частоты композитного сигнала.23. The method according to clause 16, in which the first signal has a frequency different from the frequency of the composite signal. 24. Способ по п.16, в котором применение нелинейного преобразования к первому сигналу включает в себя этапы, на которых24. The method according to clause 16, in which the application of non-linear transformations to the first signal includes the steps of аппроксимируют нелинейные характеристики усилителя мощности передающего устройства;approximate the nonlinear characteristics of the power amplifier of the transmitting device; аппроксимируют нелинейные характеристики цепочки приемного устройства; иapproximate the nonlinear characteristics of the receiver chain; and адаптивно аппроксимируют линейные характеристики цепочки приемного устройства.adaptively approximate the linear characteristics of the receiver chain. 25. Приемопередающее устройство, содержащее:25. A transceiver comprising: схему подавления взаимных помех, выполненную с возможностьюmutual interference suppression circuit configured to принимать первый передаваемый сигнал,receive the first transmitted signal применять линейное и нелинейное преобразование к первому передаваемому сигналу, чтобы получить сигнал подавления помех,apply linear and non-linear transforms to the first transmitted signal to obtain an interference suppression signal, принимать композитный сигнал из схемы преобразования с понижением частоты приемного устройства, иreceive a composite signal from the down-conversion circuit of the receiver, and вычитать сигнал подавления помех из композитного сигнала, чтобы получить требуемый принимаемый сигнал.subtract the interference suppression signal from the composite signal to obtain the desired received signal. 26. Приемопередающее устройство по п.25, дополнительно содержащее:26. The transceiver according to claim 25, further comprising: схему преобразования с повышением частоты передающего устройства для модуляции и усиления передаваемых сигналов; иa conversion circuit with increasing the frequency of the transmitting device for modulating and amplifying the transmitted signals; and схему преобразования с понижением частоты приемного устройства для демодуляции и усиления принимаемых сигналов.a down-conversion circuit of a receiving device for demodulating and amplifying received signals. 27. Приемопередающее устройство по п.26, дополнительно содержащее коммутатор, подключенный к схеме преобразования с повышением частоты передающего устройства и схеме преобразования с понижением частоты приемного устройства, для подключения передаваемых сигналов к антенне и приема принимаемого сигнала от антенны.27. The transceiver according to claim 26, further comprising a switch connected to a conversion circuit with increasing frequency of the transmitting device and a conversion circuit with lowering the frequency of the receiving device, for connecting the transmitted signals to the antenna and receiving the received signal from the antenna. 28. Приемопередающее устройство по п.25, в котором сигнал подавления помех вычитается из композитного сигнала в основной полосе частот.28. The transceiver of claim 25, wherein the interference suppression signal is subtracted from the composite signal in the main frequency band. 29. Приемопередающее устройство по п.25, в котором композитный сигнал включает в себя утекший сигнал из схемы преобразования с повышением частоты передающего устройства.29. The transceiver of claim 25, wherein the composite signal includes a leaked signal from the conversion circuit with increasing frequency of the transmitting device. 30. Приемопередающее устройство по п.25, в котором композитный сигнал включает в себя модулированный по амплитуде утекший сигнал, сигнал преднамеренных помех и принимаемый сигнал.30. The transceiver of claim 25, wherein the composite signal includes an amplitude modulated leaked signal, an intentional interference signal, and a received signal. 31. Приемопередающее устройство по п.25, в котором сигнал подавления помех устраняет помехи второго порядка из композитного сигнала.31. The transceiver of claim 25, wherein the interference suppression signal eliminates second order interference from the composite signal. 32. Приемопередающее устройство по п.25, в котором сигнал подавления помех устраняет помехи третьего порядка из композитного сигнала.32. The transceiver of claim 25, wherein the interference suppression signal eliminates third order interference from the composite signal. 33. Приемопередающее устройство по п.25, в котором применение линейного и нелинейного преобразования к первому передаваемому сигналу включает в себя этапы, на которых:33. The transceiver of claim 25, wherein applying the linear and non-linear transforms to the first transmitted signal includes the steps of: аппроксимируют линейные и нелинейные характеристики схемы преобразования с повышением частоты передающего устройства; иapproximate the linear and nonlinear characteristics of the conversion circuit with increasing frequency of the transmitting device; and аппроксимируют линейные и нелинейные характеристики схемы преобразования с понижением частоты приемного устройства.approximate the linear and nonlinear characteristics of the conversion circuit with decreasing the frequency of the receiving device. 34. Приемопередающее устройство по п.25, в котором схема подавления взаимной модуляции отключается, когда передаваемые сигналы находятся ниже определенного порога мощности.34. The transceiver of claim 25, wherein the mutual modulation suppression circuit is turned off when the transmitted signals are below a certain power threshold. 35. Машиночитаемый носитель, содержащий команды для восстановления и подавления сигналов помех взаимной модуляции в основной полосе частот, которые когда приводятся в исполнение процессором, вызывают выполнение процессором операций, содержащих:35. A computer-readable medium containing instructions for restoring and suppressing intermodulation interference signals in the main frequency band, which, when executed by the processor, cause the processor to perform operations containing: применение линейного и нелинейного преобразования к первому сигналу, чтобы получить сигнал подавления помех; иapplying linear and non-linear transforms to the first signal to obtain an interference suppression signal; and вычитание сигнала подавления помех из композитного сигнала, чтобы получить требуемый принимаемый сигнал.subtracting the interference suppression signal from the composite signal to obtain the desired received signal. 36. Машиночитаемый носитель по п.35, в котором нелинейное преобразование36. The computer-readable medium of claim 35, wherein the non-linear transformation аппроксимирует линейные и нелинейные характеристики схемы преобразования с повышением частоты передающего устройства иapproximates the linear and nonlinear characteristics of the conversion circuit with increasing frequency of the transmitting device and аппроксимирует линейные и нелинейные характеристики схемы преобразования с понижением частоты приемного устройства. approximates the linear and nonlinear characteristics of the conversion circuit with decreasing the frequency of the receiving device.
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